Question

a) When E. coli is in an environment that contains no sugar, what is happening at the operator/promoter for the lactose operon? b) If you drink a glass of milk first thing in the morning on an empty stomach, what happens at the operator/promoter for the lac operon of the E. coli in your intestines? c) If you drink a glass of orange juice before you drink a glass of milk in the morning, what effect will that have on the operator/promoter for the lac operon of the E. coli in your intestines? d) If three genes are required to process lactose in your own intestinal cells, how many promoters must be regulated to produce those proteins?

          a) When E. coli is in an environment that contains no sugar, what is happening at the operator/promoter for the lactose operon?
b) If you drink a glass of milk first thing in the morning on an empty stomach, what happens at the operator/promoter for the lac operon of the E. coli in your intestines?
c) If you drink a glass of orange juice before you drink a glass of milk in the morning, what effect will that have on the operator/promoter for the lac operon of the E. coli in your intestines?
d) If three genes are required to process lactose in your own intestinal cells, how many promoters must be regulated to produce those proteins?

Added by Luc-A W.

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